Motorola CP150 - Figure 12-35. UHF (438-470 Mhz) Audio Circuitry Schematic Diagram (8486348 Z13-C)

UHF (438-470 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486348Z13-C) 12-45
6880309N62-C June, 2005
0.1uF
10K
2
4
3
R522
100K
VHF UHF
R513
R515
R516
R517 0
Not Placed
Not Placed
Not Placed
Not Placed
DC Level 0.3 - 0.4 V low
Supply = 7.42
1/2 Supply = 3.22
INTERNAL SPEAKER
MICROPHONE CONNECTOR
Not Placed 0
100k
150 mV RMS (25 KHz) (Rx)
75 mV RMS (25 KHz) (Rx)
114 mV
15 V
145 mV RMS
7.5 V
200 mV RMS
3.5 V (UNSQ)
3.5 V (UNSQ)
0.15 V (UNSQ)
3 V (TX)
0 V (RX)
3.46 V RMS(RX)(0.5W @ 24 OHMS)
10 mV RMS (Tx)
2.3 V
ACCESSORY CONNECTO
R
NC
NC
220K
R518
VR475
MMBZ5245B
15V
2
R470
2.2K
R497
5V_A
5V_B
D470
C519
1uF
C454
0.1uF
M1
1
M2
2
M3
3
7
S1
S2
4
6
S3
S4
5
20V
MMBZ5250B
VR473
J471
J491-44
J491-3
3
C459
0.1uF
R463
24K
45
VDDSYN
27
VOX
7
VR472
28
TXRTN
36
TXSND
44
UIO
10
VDDA
1
VDDCP
32
VDDD
33
VDDDAC
11
VDDRC
26
PLCAP
8
25
PLCAP2
RXRTN
43
RXSND
39
SQCAP
12
SQDET
17
SQIN
9
SYN
47
GNDSYN
23
HSIO
19
LCAP
24
LSIO
18
MICEXT
48
MICINT
46
MOD
40
NC
14
GCB2
13
GCB3
35
GCB4
37
GCB5
38
GNDA
3
GNDD
31
GNDDO
30
GNDRC
20
DACG
6
DACR
5
DACU
4
DATA
22
DISC
2
F1200
29
GCB0
15
GCB1
AUDIO
41
AUXTN
42
CHACT
16
21
CLK
CLK168
34
CSX
1200pF
30C53
U451
5V_B
C467
2
3
1
8
4
VR471
NU
U480-1
6
5
7
8
4
C466
U510-2
LM2904
1
R517
R511
J491-1
2.2K
100K
0.1uF
Not_Placed:NU
R490
U511
UMG5
2
6
4
1
3
C518
R493
C514
16pF
330K
5V_B
100K
R519
R496
10K
0
R480
Not_Placed:NU
E451
BK1005HM471
NC
100K
5V_A
R476
R486
R488
330K
R489
C472
0.1uF
R473
680
10uF
C492
24K
R460
Q520-1
IMX1
5
1
6
Not_Placed:NU
.033uF
C484
100K
R479
3V_A
30K
R464
NC
1000pF
C465
47K
R451
680
R472
24K
R492
U510-1
LM2904
2
3
1
8
4
C497
0.1uF
R487
0
C481
R521
NU
Not_Placed:NU
.01uF
NC
C482
0.1uF
C463
0.1uF
C480
100K
R520
6
5
7
8
4
5V_A
25
6
3
1
4
5V
U480-2
Q470
C451
0.1uF
C460
3V
0.1uF
4
1
3
R515
UMG5
Q490
2
6
0.1uF
C464
NU
Not_Placed:NU
2.2K
R484
R516
5V
C512
6.8pF
R513
3
NC
IMX1
Q520-2
Q471
2
6
4
1
R499
NC
24K
150pF
C478
R462
C452
0.1uF
R481
220pF
C474
C511
BK1005HM471
3V
150pF
R485
E452
J470-1
1
BK1005HM471
E453
OUTPOS
8
SVR
2
VCC
6
470pF
C490
TDA8541
GND
7
INNEG
4
3
INPOS
MODE
1
OUTNEG
5
Q472
25
6
3
1
4
U490
220pF
R498
C513
R255
3.9K
1%
R495
C477
0.1uF
2
5.6K
VR474
MMBZ5250B
20V
A_MOD_OUT
3V_A
C475
.022uF
2.2K
R477
C471
2.2uF
C479
150pF
Not_Placed:NU
Q481
1
3
2
3V_A
0.1uF
C470
C473
150pF
2.2uF
C494
C483
0.22uF
3V_A
180K
R475
4.7uF
C453
D491
C457
0.1uF
NC
100K
R514
R523
C462
NC
150K
R512
.022uF
C455
R491
0
D471
C496
1uF
1uF
C495
R474
330
L471
3V_A
.022uF
C476
1
3
2
390nH
R494
Q482
330K
39pF
C499
5V_A
0.1uF
C456
2.2K
R478
C498
1uF
C493
1000pF
C488
470pF
R469
470pF
C489
10
R482
R471
5V_B
5V_B
2.2K
R483
C461
1000pF
0.1uF
C458
3V
5V
OPT_MIC
VS_GAIN_SEL
DEMOD
ASFIC_CS
BATT_CHARGE
OPT_TX_AUD_RETURN
OPT_RX_AUD_SEND_DETECTOR
CH_ACT
VOX
PWR_SET
EXT_MIC_PTT
OPT_TX_AUD_FLAT_RETURN
SW_B+16_8_MHZ
MOD_OUT
RESET
OPT_RX_AUD_RETURN
OPT_RX_AUD_SEND_UNMUTED
OPT_TX_AUD_SEND
SPI_DATA_OUT
LSIO
SPI_CLK
SQ_DET
BW_SEL
F1200
HSIO
VS_AUDIO_SEL
uP_CLK
SCI
BOOT_ENA
Figure 12-35. UHF (438-470 MHz) Audio Circuitry Schematic Diagram (8486348Z13-C)